linear equations

Question 7: Yamini and Fatima, two students of Class IX of a school, together contributed Rs 100 towards the Prime Minister’s Relief Fund to help the earthquake victims. Write a linear equation which satisfies this data. (You may take their…

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Question 6: If the work done by a body on application of a constant force is directly proportional to the distance travelled by the body, express this in the form of an equation in two variables and draw the graph…

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Question 5: From the choices given below, choose the equation whose graphs are given in Fig. 4.6 and Fig. 4.7. For Fig. 4. 6 (i)y=x (ii) x+y=0 (iii) y = 2x (iv) 2+3y=7x For Fig. 4.7 (i) y=x+2 (ii) y=x–2…

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Question 4: The taxi fare in a city is as follows: For the first kilometre, the fare is Rs 8 and for the subsequent distance it is Rs 5 per km. Taking the distance covered as x km and total…

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Question 3: If the point (3, 4) lies on the graph of the equation 3y = ax + 7, find the value of a. Question 2 Question 4

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Question 2: Give the equations of two lines passing through (2, 14). How many more such lines are there, and why? Question 1 Question 3

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Question 1: Draw the graph of each of the following linear equations in two variables: (i) x+y=4 (ii) x–y=2 (iii) y=3x (iv) 3=2x+y Ex: 4.2 | Question 3 & 4 Question 2

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Question 3: Check which of the following are solutions of the equation x – 2y = 4 and which are not: (i) (0,2) (ii) (2,0) (iii) (4,0) (iv) ( √2,4 √2) (v)(1,1) Question 4: Find the value of k, if…

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Question 2: Write four solutions for each of the following equations: (i) 2x+y=7 (ii) πx+y=9 (iii) x=4y Question 1 Question 3 & 4

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Question 1: Which one of the following options is true, and why? y = 3x + 5 has (i) a unique solution, (ii) only two solutions, (iii) infinitely many solutions Ex: 4.1 | Question 2 Question 2

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